Doctor profile · Federal record

Dr. Katherine Martin-Bredahl, FNP

Nurse Practitioner · Nurse Practitioner · Family Nurse Practitioner · Family Nurse Practitioner · Saint Louis, MO

  • NPI 1427388776
  • Accepts Medicare
  • 17 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
969 N Mason RD Ste 110
Saint Louis, MO 631416338
(314) 996-3434
Additional location
2401 S Brentwood Blvd
Saint Louis, MO 631442301
(314) 687-2714
Additional location
660 Mason Ridge Center Dr
Saint Louis, MO 631418509
(314) 273-6433

Credentials & registration

NPPES · NUCC
NPI registered
January 2010 — 16 yrs on file
Profile last updated
January 31, 2023
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Missouri #2009037799 · Illinois #209023198
Medicaid (2)
MO #1427388776 · IL #ENROLLED

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427388776. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,149
Distinct HCPCS
10
Medicare allowed
$86,567
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 344 268 $105
99213 Established patient office or other outpatient visit, 20-29 minutes 209 195 $70
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 171 171 $106
36415 Insertion of needle into vein for collection of blood sample 163 152 $8
G0008 Administration of influenza virus vaccine 39 39 $30
90662 Influenza vaccine split virus, preservative free 38 38 $72
99421 Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 35 33 $12
G0009 Administration of pneumococcal vaccine 28 28 $30
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 27 27 $281
81002 Urinalysis, manual test 20 19 $3

In context: peer comparison

Among 112 peers in Saint Louis Nurse Practitioner, average services per provider: 76. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,735
Transactions
82
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 16 $253.48
Abbvie INC. 9 $173.56
Novo Nordisk INC 8 $150.80
AstraZeneca Pharmaceuticals Lp 7 $147.53
Amgen INC. 8 $140.77
Lilly USA, LLC 7 $135.98
Pfizer INC. 6 $98.79
Boehringer Ingelheim Pharmaceuticals, INC. 5 $88.57
Medtronic, INC. 1 $80.37
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 4 $60.34
Aimmune Therapeutics, INC. 4 $57.63
Abbott Laboratories 3 $48.91
Sanofi-Aventis U.S. LLC 1 $34.98
Edwards Lifesciences Corporation 1 $33.22
E.R. Squibb & Sons, L.L.C. 2 $33.02

By nature of payment

Food and Beverage
$1,735

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,960
Patients
1,086
Total drug cost
$24,449
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 246 126 $2,937
Levothyroxine Sodium Generic 229 119 $4,501
Amlodipine Besylate Generic 205 108 $1,417
Lisinopril Generic 176 86 $1,381
Rosuvastatin Calcium Generic 145 69 $1,490
Losartan Potassium Generic 137 70 $1,861
Hydrochlorothiazide Generic 105 49 $521
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 101 95 $871
Pantoprazole Sodium Generic 98 41 $1,511
Metoprolol Succinate Generic 96 48 $1,246

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Martin-Bredahl's medical specialty?
Dr. Katherine Martin-Bredahl practices Nurse Practitioner in Saint Louis, MO.
Where does Dr. Katherine Martin-Bredahl practice?
Dr. Katherine Martin-Bredahl practices at 969 N Mason RD Ste 110, Saint Louis, MO 631416338. Office phone: 3149963434.
What is Dr. Katherine Martin-Bredahl's NPI?
Dr. Katherine Martin-Bredahl's National Provider Identifier (NPI) is 1427388776, issued by NPPES.
Does Dr. Katherine Martin-Bredahl accept Medicare assignment?
Yes. Dr. Katherine Martin-Bredahl accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Martin-Bredahl commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.